Do wealthy people get food from a totally different supply chain?

There is a big difference between having a private chef and having a secret food system. A chef can choose particular farms, shops, or specialty suppliers and spend more time checking what is being bought. That can mean different ingredients, but it does not by itself show that the food came through a wholly separate supply chain.

For a specific claim about an exclusive network, you would want evidence about who supplies it and how it operates, not just the fact that a wealthy household can afford more customized shopping.

My short version: more options, not necessarily a different safety regime. Paying extra might get someone organic produce, unusual cuts, or direct delivery from a farm. Those choices can reflect preferences and sourcing standards, but a premium price is not proof that food is safer or more nutritious.

Recalls can affect products sold through many kinds of retailers. The useful questions are where a particular item came from, whether its source can be traced, and what checks were actually done.

Private farms serving a small group are plausible as a business arrangement, but that is not the same as an underground market. A household could also ask a chef to buy from named producers or use suppliers that offer more detail about origin and handling. Whether those practices are common among the ultra-wealthy is a separate question, and this discussion does not establish it.

I would be cautious about treating differences in appearance or access to expensive services as evidence of a hidden food network. Specific, verifiable sourcing details would make a much stronger case.